CN1881158A

CN1881158A - Miniaturized optical mouse device

Info

Publication number: CN1881158A
Application number: CNA2006100807868A
Authority: CN
Inventors: 吴荣曜; 程士哲; 张书莹
Original assignee: PIXON TECHNOLOGIES Corp
Current assignee: PIXON TECHNOLOGIES Corp
Priority date: 2005-06-15
Filing date: 2006-05-17
Publication date: 2006-12-20
Anticipated expiration: 2026-05-17
Also published as: US7696984B2; US20060284845A1; CN100437452C; TWI312479B; TW200709019A

Abstract

The invention provides a miniaturized optical mouse device, it has high angle optics to throw the route, small and low power consumptive characteristic, it includes a lighting source component and optical sensor located on identity level on the circuit board, the high angle optics throws the route and can make more light throw on the optical sensor, and have higher optical operating efficiency, and can use the LED lamp smaller and low consumption power, and make the optical sensor increase its degree of sensitivity and can improve the disadvantage that the operation effect of the traditional optical mouse is not good in the special level; the proper isolation of the lighting source and the optical sensor can further improve the sensing sensitivity, so that the low power consumption can prolong the service life of the battery of the wireless mouse, and the miniaturized characteristic can reduce the cost of manufacturing materials and has more space application flexibility in design.

Description

Miniaturized optical mouse device

Technical field

The present invention relates to a kind of optical devices, particularly a kind of miniaturized optical mouse device about the surface displacement induction.

Background technology

Traditional optical mouse is to utilize set LED illumination to skim over a surface, and the light that is reflected by surperficial line case calculates its displacement, as Fig. 1 a, be known optical mouse 100 synoptic diagram, its outside has a housing 101 and basal plane 102, circuit board (PCB) 110 in the housing 101 is provided with an illuminating part (LED) 140 and optical sensor 150, this illuminating part 140 light beam 170 that sets out of sending out is to guide through a light guide therefor 130, and this light guide therefor 130 is to be the scarce portion of extending setting and passing circuit board 110.This light beam 170 produces first reflection, 1301 and second reflection 1302 in succession after first plane 1311 enters light guide therefor 130, and penetrate through second plane 1312 of this light guide therefor 130, the scarce seam portion 107 that this light beam 170 continues through this basal plane 102 is projeced on the projection surface 10 of optical mouse 100 bottoms, and then reflection enters this light guide therefor 130 through one the 3rd plane 1313, this light beam 170 impinges upon on this optical sensor 150 at last, and this optical sensor 150 can be by the line case information on this projection surface 10 of light perception, and this line case information may be that factors such as roughness on this projection surface 10 or color obtain.Shown in Fig. 1 b, this light beam 170 is the angles 20 that form an acute angle with projection surface 10, this angle 20 normally is lower than 20 degree and greater than five degree, and this light beam 170 and projection surface 10 is one vertical to 90 being formation one angles 70, and this angle 70 normally approximates or be slightly larger than 70 degree.

Yet, the light major part that this low-angle 20 will make illuminating part 140 be throwed can't correspondence be projeced into optical sensor 150, make this illuminating part 140 must have bigger energy source power and remedy scattering and disappearing of light therebetween, cause the loss of these illuminating part 140 big energy, and make that illuminating part 140 and associated components must be bigger, and then cause the build of optical mouse 100 also bigger, and the disappearance of waste material and the development of compactization of restriction optical mouse is arranged.The set plane of this illuminating part 140 and optical sensor 150 is different, thereby needs more cause design complicated circuit board 110 cuttings, also causes build to increase.

Moreover, the known optical mouse forms housing 101 and basal plane 102 with transparent material usually for aesthetics design, the light that so makes outside non-optical mouse itself be produced can be projeced into optical sensor 150, the ghost line that also makes internal illumination part 140 be produced can be projeced into optical sensor 150, and this will disturb the correctness of optical sensor 150 imagings induction.

Summary of the invention

For reaching above-mentioned or other relevant effect and overcome purposes such as known disappearance, fundamental purpose of the present invention provides a miniaturized optical mouse device, its be by projection surface vertically to these projection surfaces of light direct irradiation that are less than 33 degree projectional angles approximately, in order to increase optical reflection efficient and to reduce energy power demand, and be increased in the optical sensitivity of projection surface displacement perception, and can further dwindle the overall volume of integral device.

A further object of the present invention provides a kind of miniaturized optical mouse device, and its light source and optical sensor equipment are located at same surface or plane, and then can simplified structure and dwindle build.

A more purpose of the present invention is to provide a kind of miniaturized optical mouse device, and it can completely cut off inner ghost line and extraneous light, and then increases optical system to the sensitivity at the projection surface top offset.

For achieving the above object, the invention provides a kind of miniaturized optical mouse device, comprising:

One circuit board has first installed surface of an installation component at least;

One lighting source spare is located on this circuit board, and the vertical direction of this circuit board first installed surface of the axially parallel of this lighting source spare;

One inductor has a sensitive surface of laying inductive component on it, the vertical direction of parallel this circuit board first installed surface of the vertical direction of this sensitive surface;

One light guide therefor, guide the light of this lighting source spare to invest a projection surface, this first installed surface of parallel this circuit board of this projection surface, and this light that this light guide therefor guided and the vertical direction of this reflecting surface are invested this projection surface less than the angle of about 32 degree, and this projection surface is invested this light the sensitive surface of this inductor again;

This lighting source spare can be selected in a LED lamp spare, infrared lamp spare or laser lamp spare;

This light guide therefor includes first reflecting surface and second reflecting surface;

This first reflecting surface has the orientation setting of spending angles with the vertical direction 45 of this lighting source spare;

This second reflecting surface has and the be provided with orientation of this first reflecting surface projecting direction near 32 degree angles.

This light guide therefor further includes:

One near first lens face of this lighting source spare, the placed in the middle setting of this first lens face and make its this lighting source spare of axially parallel axially, in order to form a light beam;

One is located at second lens face of this light guide therefor exit surface, this second lens face axially be located at the placed in the middle orientation of this light beam after this first reflecting surface, the projection of this second reflecting surface, and make this light beam invest this projection surface through this second lens face; And

One is located at relatively the 3rd lens face of this light source inlet surface of this light guide therefor, this sensitive surface of axially parallel of the 3rd lens face axially, be incident upon this sensitive surface exactly in order to light with this projection surface reflection;

This light guide therefor comprises that further one is projeced into the 4th lens face of this inductor in order to the light beam that this is entered this light guide therefor.

This light guide therefor further includes the specific surface structure of being located on this first lens face and this second lens face;

This light guide therefor further includes the specific surface structure of being located on the 3rd lens face;

The invention provides a kind of miniaturized optical mouse device, comprising:

One light guide therefor, guide the light of this lighting source spare to invest a projection surface, this first installed surface of parallel this circuit board of this projection surface, and this light that this light guide therefor guided and the vertical direction of this projection surface are invested this projection surface less than the angle of about 32 degree, this relation is invested this light the sensitive surface of this inductor again, and this light guide therefor is provided with one first mating surface and second mating surface;

One stake body includes one first and second, and it further comprises:

One is located at the light source accommodating part of first of this stake body, and this light source accommodating part is provided with a pair of outlet hole that should lighting source spare;

One is located at the induction holding part of second of this stake body, and this induction holding part is provided with a pair of entry pore that should inductor;

One is located at the photoconduction holding part of second of this stake body, and this photoconduction holding part is provided with a pair of guiding surface that should light guide therefor first mating surface;

First face of this stake body is located at first installed surface of this circuit board relatively; And

One holds lid, and it includes:

One in order to change the perforation of radiation direction;

One is installed with the room of this stake body and this light guide therefor in order to correspondence, and it is provided with inner corresponding, the surface of locating second of this light guide therefor second mating surface and this stake body, so that this of this light guide therefor first mating surface is to this light source accommodating part that should stake body;

A pair of should stake body or the clamping piece of circuit board;

And make this appearance lid coat this stake body and this light guide therefor, and this inductor of insulation blocking is in light from outside;

This appearance lid and stake body are made with not specular black polymer;

This stake body further includes plural number from the finger of this first extension, and this circuit board is provided with plural pilot hole that should plural finger;

This light guide therefor further includes one first reflecting surface and second reflecting surface;

This first reflecting surface is with the orientation setting of axial about 45 degree of this lighting source spare relatively, and this second reflecting surface is with the orientation setting of about 29 degree of projecting direction of this first reflecting surface relatively;

This light guide therefor further includes:

One near this outlet hole of this stake body and first lens face that is provided with axially placed in the middle relatively, in order to form a light beam;

One is located at this light guide therefor the 3rd lens face of this projection surface inlet surface relatively, the 3rd lens face axially be from the center of this sensitive surface and the relative orientation placed in the middle of the entry pore of this stake body, be incident upon this sensitive surface exactly in order to light with this projection surface reflection.

This light guide therefor further includes one and is projeced into the 4th lens face of this inductor in order to the light beam that this is entered this light guide therefor.

This light guide therefor further includes the specific surface structure of being located on this first lens face, these second lens, the 3rd lens face and this second lens face in order to this light beam that extends.

Further include a housing, this housing is provided with a corresponding bottom surface and an end face that moves with this projection surface, and this housing is installed with this stake body, light guide therefor, circuit board, appearance lid, lighting source spare and inductor.

This lighting source spare can be selected in a LED lamp spare, infrared lamp spare or laser lamp spare.

The invention provides a kind of miniaturized optical mouse device, comprising:

One in order to provide the lighting source spare of light;

One inductor in order to sensing light;

One light guide therefor guides the light of this lighting source spare to invest a projection surface, and this projection surface continues the direction change of this ray cast and invests this inductor;

This lighting source spare and this inductor are located on the face parallel with this first installed surface.

The guiding of this light guide therefor is invested this projection surface from this light of this lighting source spare and the vertical direction of this projection surface less than the angle of about 32 degree, this projection surface is invested this light the sensitive surface of this inductor again, and this first installed surface of parallel this circuit board of this projection surface.

Implement the present invention, can simplify the structure of optical mouse core component, and effectively make this lighting source spare of isolation, optical sensor spare and optical sensor spare not be subjected to the interference of external light source, to increase the sensitivity of this optical mouse running, moreover, its with the optical mouse core component miniature the deviser is had bigger Flexible Design space.

Description of drawings

Fig. 1 a is the cross-sectional structural representation of known optical mouse;

Fig. 1 b is a known optical mouse ray cast path synoptic diagram;

Fig. 2 a is an internals structural representation of the present invention;

Fig. 2 b is the internals second example structure synoptic diagram of the present invention;

Fig. 3 a is a light guide structure synoptic diagram of the present invention;

Fig. 3 b is a ray cast of the present invention path synoptic diagram;

Fig. 4 a looks synoptic diagram on the stake body of the present invention;

Fig. 4 b looks synoptic diagram at the bottom of the stake body of the present invention;

Fig. 4 c is a stake body cross-sectional schematic of the present invention;

Fig. 5 is the corresponding synoptic diagram that shows of stake body of the present invention;

Fig. 6 a presss from both sides the lid synoptic diagram for the present invention;

Fig. 6 b presss from both sides the lid portion inside synoptic diagram for the present invention;

Fig. 6 c presss from both sides the lid schematic side view for the present invention;

Fig. 6 d looks synoptic diagram for the end of optical mouse core component combination of the present invention;

Fig. 7 is the structural representation of light guide therefor of the present invention;

Fig. 8 is the ray cast path synoptic diagram of light guide therefor of the present invention;

Optical mouse 100 housings 101

Basal plane 102 illuminating parts 140

Optical sensor 150

Light beam 170 light guide therefor 130

1,311 first reflections 1301 of first plane

Second reflection, 1,302 second planes 1312

Lack seam portion 107 projection surfaces 10

The 3rd plane 1313 outlet holes 2211

Entry pore 2212 stake bodies 220

Lighting source spare 240 optical sensor spares 250

Circuit board 210 light source accommodating part 2201

Induction holding part 2202 light guide therefor 230

Photoconduction holding part 2203 folder lids 260

The hole lacks portion's 267 end pin 2366～2367

First reflecting surface, 2,301 second reflectings surface 2302

First lens face, 2,311 second lens faces 2312

The 3rd lens face 2313 the 4th lens face 2314

First mating surface, 2,321 second mating surfaces 2322

Light beam 270 2291-2293 of ear

Button portion 2601～2603 circuit board outer rims 2230

2281 zones 2283, zone

Middle section 2282 long limits 2251～2252

Prominent frame 2254 angles 2241～2243

Pilot hole 2141～2143 end surfaces 265

267 inside surfaces 2651 of boring a hole

Embodiment

Have the knack of this skill personage and further understand the relevant purpose of the present invention for making, in the middle of the relevant preferred embodiment of the present invention detailed description in conjunction with the accompanying drawings, describe identical or similar member with identical numbering as far as possible.

As Fig. 2 a, (this profile status makes this outlet hole 2211 and entry pore 2212 that this stake body 220 is divided into three parts for the cross-sectional synoptic diagram in the inside of miniaturized optical mouse device preferred embodiment of the present invention, this section is same as Fig. 4 c, the A-A hatching line that is indicated as Fig. 6 c), an one lighting source spare 240 and an optical sensor spare 250 are located on the circuit board (PCB) 210, and the set face of this lighting source spare 240 and optical sensor spare 250 is parallel should be in order to be provided with this circuit board (PCB) 210 of related electronic components, this lighting source spare 240 is a LED lamp form setting with surperficial solid welding, or in addition with infrared ray, laser or other emitting module are fit to cooperate the form setting of this optical sensor spare 250 receptions; One stake body 220, in conjunction with being located on this circuit board 210, cover and isolate in order to cover and this lighting source spare 240 and optical sensor spare 250 are set respectively in a light source accommodating part 2201 and the induction holding part 2202, project so that the light source of this lighting source spare 240 only can export hole 2211 from this, and the light source that this optical sensor spare 250 is received only enters from this entry pore 2212; One light guide therefor 230, be located at photoconduction holding part 2203 places of this stake body 220, and located (describe in detail down) by a folder lid 260, and this folder lid 260 has a hole and lacks portion 267, and the scarce portion 267 in this hole can make internal light source project and return in the miniaturized optical mouse device through a projection surface 10 back reflections.

Scheme as 2b, the cross-sectional synoptic diagram in inside for miniaturized optical mouse device second embodiment of the present invention, present embodiment is different with previous embodiment be in: do not have this in order to separate the stake body of this lighting source spare 240 and optical sensor spare 250, and this light guide therefor can utilize a folder lid (not shown) or end pin 2366～2367 to be positioned on the circuit board 210, or this light guide therefor can be in conjunction with being located at (not shown) on a housing or the shell block.

Simultaneously with reference to figure 3a, it is in order to explanation light guide therefor synoptic diagram in the relevant miniaturized optical mouse device preferred embodiment of the present invention in Fig. 2 a and Fig. 2 b, in this preferred embodiment, this light guide therefor 230 has one first reflecting surface 2301 and second reflecting surface 2302, this light guide therefor 230 also includes one first lens face 2311, second lens face 2312, the 3rd lens face 2313 and the 4th lens face 2314, moreover, this light guide therefor 230 further includes one first mating surface 2321 and second mating surface 2322, this light guide therefor 230 can be polymkeric substance, glass or other refrangible and make for the material that can Gong penetrate on the optics, in the optics running, after light beam 270 is sent by this lighting source spare 240, enter light guide therefor 230 by this first lens face 2311, continue after the refraction of this first reflecting surface 2301 and second reflecting surface 2302, enter this light guide therefor 230 with an angle through this second lens face 2312 again, and the angle that this enters light guide therefor 230 plays 33 degree angles less than the vertical angle of this projection surface, moreover, for this light beam 270 can be throwed equably, the surface of this first lens face 2311 and second lens face 2312 has specific surface structure, as some quarter or its face of alternate manner Fuzzy and Rough, and, for making the luminous energy that this projection surface 10 is reflected fully arrive this optical sensor spare 250, and make this can learn the tiny mobile image information of induction pieces 250 energy perception, the 3rd lens face 2313 can further have suitable surface structure to be handled, perhaps, in the middle of other enforcement, this first lens face 2311, second lens face 2312, the 3rd lens face 2313 and the 4th lens face 2314 also can be a tabular surface setting.

This angle can be 32 degree in preferred embodiment, and this angle can be adjusted with design.This angle is that the plane is that benchmark gets with the projection surface, and because of optical mouse may be raised, rotates or use on uneven surface in using, under this of short duration beam trajectory changed, this angle also may change thereupon.

Shown in Fig. 3 a, after the 3rd lens face 2313 enters this light guide therefor 230, continue is projected by the 4th lens face 2314 through this light guide therefor 230 light, leaves light guide therefor 230 and is projected to this optical sensor spare 250 with this light beam 270 at last from this projection surface projection.

As shown in Figure 3, in the ray cast path in the aforementioned preferred embodiment and second embodiment, light enters after this light guide therefor the angles that play 33 degree with the vertical angle less than this projection surface 10 and is projected to this projection surface 10, and promptly the light that received of this optical sensor spare (not icon) is to be projected to the light of this projection surface 10 near the angle vertical with this projection surface 10.Shown in Fig. 3 a and Fig. 3 b, the adjustment of this first reflecting surface 2301 and second reflecting surface, 2302 suitable angles changes also can make this light beam 270 be projected to this projection surface 10 with the angle near 32 degree.

As 4a, 4b and 4c figure, in order to show the three-face view explanation of this stake body 220 of miniaturized optical mouse device of the present invention, this Fig. 4 a top view that is stake body 220 wherein, this stake body 220 is provided with a light source accommodating part 2201 in order to be installed with this lighting source spare 240, reach one in order to be installed with the induction holding part 2202 of this optical sensor spare 250, this light source accommodating part 2201 has an outlet hole 2211, can make light enter (as shown in Figure 2) in this light guide therefor by this outlet hole 2211, this induction holding part 2202 has an entry pore 2212, by this entry pore 2212 light is entered and be projected to this optical sensor spare 250, be provided with three 2291-2293 of ear in the outside of this stake body 220, the 2291-2293 of this ear can be fastened on the button portion 2601～2603 (shown in Fig. 6 a) of this folder lid 260, from Fig. 4 a, can find out the outer rim 2230 of the circuit board that this circuit board of this stake body 220 contacts 210 is shown, this stake body 220 is so with isolated this lighting source spare 240 and optical sensor spare 250, and the unique light outlet path after making this outlet hole 2211 of formation for this lighting source spare 240 emission light, and this stake body 220 also forms the unique light entrance path that is arrived this optical sensor spare 250 by this entry pore 2212 for light, this stake body 220 can absorb by this lighting source spare 240 and emit beam and the material that can reduce the internal light scattering is made, as material of black polymer or particular procedure or the like.

Shown in Fig. 4 b, in order to photoconduction holding part 2203 surfaces of this stake body 220 to be described, this surface is to external form profile that should light guide therefor 230, in order to suitable setting and locate this light guide therefor 230, when from then on top view is looked down, the zone 2281 that this ring crosses oral pore crack 2211 ring to enclose the zone 2283 of entry pore 2212 low.As Fig. 4 b and Fig. 3 a, this middle section 2282 has the angle of inclination with this light guide therefor 230 second reflectings surface 2302, and behind an ora terminalis, make this middle section 2282 rise to this zone 2281, the surface that this light guide therefor 230 is positioned at the 4th lens face 2314 annexes is to should zone 228, this first surface 2321 then to should the zone 2281, so can locate this light guide therefor 230 by the surface of this stake body 220.Moreover, the side of this light guide therefor 230 is parallel plane, and two long limits 2251～2252 of this photoconduction holding part 2203 that can correspondingly coincide, the minor face of this photoconduction holding part 2203 is provided with a prominent frame 2254, in order to locate the end limit of this light guide therefor 230, and this light guide therefor 230 of the also corresponding location of second minor face of this photoconduction holding part 2203, so can make this light guide therefor 230 firm be positioned at this photoconduction holding part 2203.

Fig. 4 c is in order to the sectional elevation that shows this light guide therefor 230 and the circuit board 210 of Fig. 6 cA-A profile line, its announcement has shape (in cut open and comprise two ends), light source accommodating part 2201 and induction holding part 2202, an ear 2292 of this outlet hole 2211 and entry pore 2212, this photoconduction holding part 2203, promptly this section is through this outlet hole 2211 and entry pore 2212, as the section that Fig. 2 a is, this stake body 220 is section and form three parts according to this.

As Fig. 5, in order to being provided, this stake body 220 can select to implement aspect, the surface of this stake body 220 and these circuit board 210 corresponding end further includes the angle 2241～2243 of one injection molding, this angle 2241～2243 inserts the pilot hole 2141～2143 of this circuit board 210, this angle 2241～2243 inserts the pilot hole 2141～2143 of this circuit board 210, these angle 2241～2243 assembling backs are smooth for good in the back side of this circuit board 210 relatively, continue assembling location this lighting source spare 240 and optical sensor spare 250 (together with other electronic package) on this circuit board 210, and be that this stake body 220 of energy strong fix is on this circuit board 210, the angle 2241～2243 of this stake body 220 is asymmetric setting, to enable this stake body 220 strong fixs and out of position ornaments when avoiding assembling.

As Fig. 6 a, should press from both sides the embodiment synoptic diagram of lid 260 for miniaturized optical mouse device of the present invention, this folder lid 260 has a smooth end surfaces 265, this end surfaces 265 is provided with a perforation 267, as shown in the figure, in preferred embodiment, this folder lid 260 is provided with three button portions 2601～2603, and (button portion 2603 is positioned at the opposite side of this button portion 2601, shown in Fig. 6 d), this button portion 2601～2603 in order to the 2291-2293 of ear that fastens this stake body 220 (as Fig. 4 a, shown in the 4b), this button portion 2601～2603 and ear 2291～2293 are with asymmetric combination setting, being determined at a kind of assembling mode, and make this perforation 267 finally correctly be positioned at (shown in Fig. 2 a) on this light guide therefor 230.

As Fig. 6 b, should press from both sides the embodiment schematic internal view of lid 260 for miniaturized optical mouse device of the present invention, the inside surface 2651 of this end surfaces 265 (not shown) is tight against second mating surface that connects this light guide therefor 230 (not shown), in order in the photoconduction holding part 2203 that this light guide therefor 230 is positioned this stake body 220 (not icon), promptly finish the assembling of optical mouse core component.

Shown in Fig. 6 c, for the embodiment of this folder lid of miniaturized optical mouse device of the present invention looks closely synoptic diagram, as shown in the figure, this button portion 2602 be positioned at side central authorities and near the position of circuit board 210 ora terminalis, wherein the ear 2292 of this stake body 220 fastens in it, this end surfaces 265 is to be positioned at illustrated top, and hatching line A-A is used for representing this Fig. 2 a and Fig. 4 c.

As Fig. 6 d, be optical mouse core component bottom schematic view, visible this perforation 267 is to be positioned on the end surfaces of this folder lid 260 265 from diagram, can manifest this second lens face 2312 from this perforation 267, the part of the 3rd lens face 2313 and this stake body 220, this second lens face 2312 and the 3rd lens face 2313 are behind both allocations, this light beam (not shown) is projected from this second lens face 2312, and be projeced on this projection surface 10 (not shown) through this perforation 267, reflection enters the 3rd lens face 2313 through this perforation 267 more then, has in the diagram at these button portion 2601～2603 location labels specifically not shown.

Fig. 7 is the ray guidance state of lens systems of the present invention, Fig. 8 is in order to the mathematical relation state of display optical, the light that this lighting source spare 240 is launched is projected to first lens face 2311 of this light guide therefor 230 approximately with the orientation placed in the middle of sextant, this first lens face 2311 has focal length design accurately and can form this light beam 270, this light guide therefor 230 usefulness black and not specular material is made for good, with the correct path of guaranteeing that this light beam 270 is advanced, this light beam 270 is continue after the refraction of this first reflecting surface 2301 and second reflecting surface 2302, see through this perforation 267 from this second lens face 2312 and be projected to this projection surface 10 (icon not, as mouse pad, desktop etc.), light is again through the reflection of this projection surface 10 and in the 3rd lens face 2313 enters this light guide therefor 230, be projected to the imaging surface 2501 of this optical sensor spare 250 again from the 4th lens face 2314.

These first reflecting surface, 2301 Len reqs for this outlet hole 2211 depth of interaction length divided by the sin miter angle, these second reflecting surface, 2302 Len reqs maybe can be reduced to the sin angles of 29 degree for the depth of interaction e of this outlet hole 2211 spends the sin angle of (being 45-θ) divided by most preferred embodiment 32.

Miniaturized optical mouse device of the present invention can specifically improve the shortcoming of conventional optical mouse, and provide a kind of electric energy that reduces to use and reduce Master Cost, and can simplify the structure of optical mouse core component, and effectively make and isolate the interference that this lighting source spare, optical sensor spare and optical sensor spare are not subjected to external light source, to increase the sensitivity of this optical mouse running, moreover, its with the optical mouse core component miniature the deviser is had bigger Flexible Design space.

Comprehensively above-mentioned, only be preferred embodiment of the present invention, be not to be used for limiting scope of the invention process,, all should be included in the claim scope of the present invention so all equalizations of doing according to the described shape of the present patent application claim, structure, feature and spirit change and modify.

Claims

1. A miniaturized optical mouse device, characterized in that: comprising:

A circuit board having at least a first mounting surface of a mounting member;

An illumination light source element is arranged on the circuit board, and the axial direction of the illumination light source element is parallel to the vertical direction of the first mounting surface of the circuit board;

An inductor has a sensing surface on which sensing components are arranged, and the vertical direction of the sensing surface is parallel to the vertical direction of the first mounting surface of the circuit board;

A light guide, guiding the light of the illumination light source to a projection surface, the projection surface is parallel to the first installation surface of the circuit board, and the perpendicular direction of the light guided by the light guide to the reflective surface is less than about thirty The angle of two degrees is projected to the projection surface, and the projection surface projects the light to the sensing surface of the sensor.

2 . The miniaturized optical mouse device according to claim 1 , wherein the lighting source element can be selected from an LED light element, an infrared light element or a laser light element.

3. The miniaturized optical mouse device as claimed in claim 1, wherein the light guiding member comprises a first reflective surface and a second reflective surface.

4. The miniaturizable optical mouse device according to claim 3, characterized in that: the first reflective surface has an azimuth set at an angle of 45 degrees to the vertical direction of the illumination light source element, and the second reflective surface has an angle with The projecting direction of the first reflective surface is close to the setting orientation of an angle of 32 degrees.

5. The miniaturizable optical mouse device according to claim 3, wherein the light guide further comprises:

A first lens surface closest to the illumination source element, the first lens surface is centrally arranged so that its axis is parallel to the axis of the illumination source element, for forming a light beam;

A second lens surface arranged on the exit surface of the light guide, the axial direction of the second lens surface is set at the middle position of the light beam projected through the first reflective surface and the second reflective surface, and the light beam passes through the the second lens surface projects towards the projection surface; and

A third lens surface is provided on the surface of the light guide member opposite to the light source inlet, the axis of the third lens surface is parallel to the axis of the sensing surface, and is used for accurately projecting the light reflected by the projection surface on the sensing surface.

6. The miniaturizable optical mouse device according to claim 5, wherein the light guide further comprises a fourth lens surface for projecting the light beam entering the light guide onto the sensor.

7. The miniaturized optical mouse device according to claim 5, wherein the light guide further comprises specific surface structures disposed on the first lens surface and the second lens surface.

8. The miniaturizable optical mouse device as claimed in claim 5, wherein the light guide further comprises a specific surface structure disposed on the third lens surface.

9. A miniaturizable optical mouse device, characterized in that: comprising:

A circuit board having at least a first mounting surface of a mounting member;

A light guide, guiding the light of the illumination light source to a projection surface, the projection surface is parallel to the first installation surface of the circuit board, and the perpendicular direction of the light guided by the light guide to the projection surface is less than about thirty An angle of two degrees is projected onto the projection surface, and the light is projected to the sensing surface of the sensor according to the relationship, and the light guide is provided with a first mating surface and a second mating surface;

A support body, including a first surface and a second surface, which further includes:

A light source accommodating portion provided on the first surface of the support body, the light source accommodating portion is provided with a pair of outlet apertures of the lighting source element;

an inductive accommodating part provided on the second surface of the support body, the inductive accommodating part is provided with a pair of inlet holes of the inductor;

a light guide accommodating portion disposed on the second surface of the bracket body, the light guide accommodating portion is provided with a guiding surface corresponding to the first mating surface of the light guide;

The first surface of the support body is disposed on the first installation surface opposite to the circuit board; and

A cover body, which includes:

a perforation for changing the direction of light;

A chamber for correspondingly accommodating the bracket body and the light guide member, which is provided with a surface corresponding to and positioned inside the second mating surface of the light guide member and the second surface of the bracket body, so that the first surface of the light guide member Cooperate with the light source accommodating part facing the support body;

A pair of clips for the bracket body or the circuit board;

The cover body covers the support body and the light guide, and isolates and protects the sensor from external light.

10 . The miniaturized optical mouse device according to claim 9 , wherein the cover body and the support body are made of non-reflective black polymer. 11 .

11. The miniaturizable optical mouse device according to claim 9, wherein the support body further includes a plurality of fingers extending from the first surface, and the circuit board is provided with a plurality of fingers corresponding to the plurality of fingers. positioning hole.

12. The miniaturizable optical mouse device as claimed in claim 9, wherein the light guide further comprises a first reflective surface and a second reflective surface.

13. The miniaturizable optical mouse device according to claim 12, characterized in that: the first reflective surface is set at an orientation of about forty-five degrees relative to the axial direction of the illumination source element, and the second reflective surface is It is arranged at an orientation of about twenty-nine degrees relative to the projection direction of the first reflective surface.

14. The miniaturizable optical mouse device according to claim 12, wherein the light guide further comprises:

a first lens surface closest to the outlet aperture of the support body and axially relatively centrally arranged to form a light beam;

A third lens surface arranged on the entrance surface of the light guide member opposite to the projection surface, the axial direction of the third lens surface is from the center of the sensing surface to the center orientation of the entrance aperture of the support body, for the projection The light reflected by the surface is accurately projected on the sensing surface.

15. The miniaturizable optical mouse device according to claim 14, wherein the light guide further comprises a fourth lens surface for projecting the light beam entering the light guide onto the sensor.

16. The miniaturizable optical mouse device according to claim 15, wherein the light guide further comprises a lens on the first lens surface, the second lens, the third lens surface and the second lens surface Specific surface structures used to extend the beam.

17. The miniaturizable optical mouse device according to claim 9, further comprising a casing, the casing is provided with a bottom surface and a top surface that move correspondingly to the projection surface, and the casing accommodates The support body, the light guide, the circuit board, the cover body, the lighting source part and the sensor.

18 . The miniaturized optical mouse device according to claim 9 , wherein the lighting source element can be selected from an LED light element, an infrared light element or a laser light element.

19. A miniaturizable optical mouse device, characterized in that: comprising:

A circuit board having at least a first mounting surface of a mounting member;

a lighting source unit for providing light;

a sensor for sensing light;

A light guide for guiding the light from the illumination source unit to a projection surface, and the projection surface then changes the projected direction of the light and projects it to the sensor;

The aforementioned lighting source element and the sensor are arranged on a surface parallel to the first installation surface.

20. The miniaturizable optical mouse device according to claim 19, characterized in that: the light guided by the light guide member from the illumination light source unit and the vertical direction of the projection surface are projected at the angle of less than about 32 degrees. The projection surface projects the light to the sensing surface of the sensor, and the projection surface is parallel to the first installation surface of the circuit board.